So the Tantalum doesn't seem to be shipped in drums, instead it is being bagged.
It does seem to be in a shipping container though.
@ellimb, does this answer your question?
See Appendix B of todays presentation:
https://www.asx.com.au/asxpdf/20190212/pdf/442jsvm8s0ptvh.pdf
Image so others don't have to click: